A Multi-Transducer Near Field Acoustic Levitation System for Noncontact Transportation of Large-Sized Planar Objects
2000; Institute of Physics; Volume: 39; Issue: 5S Linguagem: Inglês
10.1143/jjap.39.2982
ISSN1347-4065
AutoresTakafumi Amano, Yoshikazu Koike, Kentaro Nakamura, Sadayuki Ueha, Yoshiki Hashimoto,
Tópico(s)Advanced Antenna and Metasurface Technologies
ResumoA new noncontact transportation system, which consists of multiple ultrasonic transducers and operates based on near-field acoustic levitation, is proposed to transport a large-sized planar object such as a glass substrate for liquid crystal devices. Using the proposed systems consisting of two and three transducers, the suspension characteristics of the levitated objects are studied as functions of both size difference and angles between the vibration systems and the levitated object. As a result, the holding force is proved to increase as the angle increases and is maximum when the horizontal dimensions of the system and the object coincide.
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